To find the x-intercept for 5x - 4y = 18, plug in a 0 for the y value and solve for x. 5x - 4(0) = 18 5x = 18 x = 18/5 or 3.6 The line will hit the x-axis at (3.6,0)
slope = 2-(-4)/-2-0 = 2+4/-2 = 6/-2 = - 3 So y=-3x+b Substitute the coordinate (0,-4) -4=-3(0)+b, -4=0+b, -4=b, y intercept is -4 Substitute that for b y=-3x-4 So the answer is y=-3x-4
For example, if you have (0, 6) or (3, 1). Which of them is a solution to y - 2x = 6? Check (0, 6): y - 2x = 6, substitute 0 for x, and 6 for y into the equation 6 - 2(0) =? 6 6 - 0 =? 6 6 = 6 True, then (0, 6) is a solution. Check (3, 1): y - 2x = 6, substitute 3 for x, and 1 for y into the equation 1 - 2(3) =? 6 1 - 6 =? 6 -5 = 6 False, then (3, 1) is not a solution.
The y-intercept is the value of a function f when x is equal to zero. So, substitute 0 for x into the equation and find the value of y.
When finding the y-intercept, plug in x=0 y = 4x + 2 y = 4(0) + 2 y = 2 So your intercept is (0,2)
0
Substitute the value x = 0 in the equation of the line. Here you get y = 0-4 = -4. So, the y-intercept is -4 ie the line intercepts the -axis at (0,-4).
substitute 0 for y and solve for x. then substitute x for 0 and solve for why and you have the x and y coordinates
x-intercept: 1. substitute 0 for y 2. solve for x y-intercept: 1. substitute 0 for x 2. solve for y
First, put the equation in slope-intervcept form y=mx + b 5y=4x + 40 The y intercept is where x=0 so- 5y= 4(0) +40 solve for y y intercept = (0,8) For the x intercept, y=0 0=4x+40 -4x=40 x= -10 xintercept =( -10.0)
Substitute x = 0.
Y intercept occurs where x=0. Substitute x=0 in this equation. Y = 2(0) Y = 0 For the x-intercept, substitute y=0: 2X = 0 X = 0 This is a line that passes through the origin. If the graph looks like y = ax + b, the y-intercept is at the point b (b can be positive or negative), and the x intercept is (-b/a).
As written this is not a graphable thing. I does not represent a graphable equation because there is no "=" sign. Whatever the equation might be, the x intercept is found by setting y=0, which leaves you with an equation for x, which is the intercept.
Because the solutions are found on the x axis when y is zero.
Slope intercept is y=mx+b Now, substitute 0 for x, and y=b. Plot the point (0,y) Then, substitute 0 for y, this one is a bit more complex: 0=mx+b -b = mx -b/m = x Since you have those values for b and m, substitute them in and you will have your value for x. Plot the point (x,0). Now for the fun part.... CONNECT THE DOTS! And you're done, you've plotted the equation. You can also substitute other values for x and y, but I personally find 0 to be the easiest.
Substitute x=0 into a y=mx+b formula (with b filled in) and solve for y
-25x+y=65-25(0)+y=65y=65When finding a y-intercept you replace the value of xwith 0. The same goes for finding the x-intercept, you replace the value of y with 0 and simplify the equation.